antra

例句：

1. 1. Antras are the opposite of the color blue.
   反义词是蓝色。
2. 2.Antras are often used to describe the opposite of a particular word or concept.
   反义词通常用来描述某个特定词语或概念的对立面。
3. 3. Antras can be found in many different contexts, such as politics and religion.
   反义词可以在很多不同的语境中找到，比如政治和宗教。